Reaming is required when IMC is cut in the field to remove burrs and rough edges.

• A. True
• B. False
• C. Only for IMC larger than 2 inches
• D. Only if the box is metal

Answer: (A)

Field-cut IMC ends often develop burrs and sharp edges. Reaming or deburring these ends is required so the cut end is smooth enough to protect conductors from nicks, allow proper seating of fittings, and prevent damage as the conduit is inserted into boxes or couplings. This helps ensure a safe, reliable connection and reduces the risk of insulation damage or snagging during installation. Factory-made or pre-cut ends are typically finished and don’t require reaming, but when you cut IMC in the field, removing burrs is the correct and necessary practice. The need to ream isn’t restricted by conduit size or by the box being metal.